Process of treating petroleum products



Patented Apr. 14, 1931 UNITED STATES PATENT OFFICE GUSTAV EGLOFF, OF CHICAGO, ILLINOIS, ASSIGNOR TO UNIVERSAL OIL PRODUCTS COM- PANY, OF CHICAGO, ILLINOIS, A CORPORATION OF SOUTH DAKOTA PROCESS OF TREATING PETROLEUM PRODUCTS No Drawing.

Application filed March 24, 1927. Serial No. 178,158.

This invention relates to improvements in tion from acid treated oil, consisting in subproccss oi treating petroleum products, and ecting the sludge acid free from extraneous the more specific application of the invcnwater to theaction of a centrifuge whereby tion may be directed to the treating of gasothe oil and acid are separated and then sepaline, kerosene, lubricating oils and the like. rately drawn off and collected.

In present day practice of refining gasoline, the crude gasoline is usually subjected to a sulphuric acid treatment. This is also true of lubricating oils. This treatment produces sludge acid, which sludge acid contains more or less oily matter dispersed through the mass of sludge. Much of this sludge acid is a waste product and is-generally run to a. sump hole, although the acid is recovered from the sludge by more or less expensive methods, in some instances.

- I GUSTAV EGLOFF.

I have discovered that the sludge acid same whole, preferably at atmospheric temperature, through an acid resisting centrifuge machine. This centrifuge machine may be operated at high speeds so as to obtain a substantially complete separation of the oil or tarry mattertfrom the acid. As

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the centrifugal action proceeds, the acid will be precipitated to the bottom of the centrifuge, the oily matter thrown to the top with the tarry sludge between, it any tarry matter is present. The various materials may then be separately drawn on and collected.

acid and oil from sludge acid after separa- 

